B.TECH - Semester 8 cryogenic engineering Question Paper 2019 (nov)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- What is super insulations?
- List out the types of heat exchangers used in cryogenic systems. Answer any one full question from each Module. Each question carries 20 marks.
- (a) Explain the thermal properties of materials at cryogenic temperatures. 10
- Define the term Cryogenics".
- List out applications of Cryogenics.
- Explain two applications of superconductivity.
- What is the function of gas liquefaction systems?
- Describe about the cryogenic storage.
- Explain Gas liquefaction.
- Write notes on cryo pumping.
- What are the advantages of magnetic cooling?
- (b) Discuss the applications of cryogenics in biology and medicine. 10 OR
- (a) How cryogenic technology can be used in food processing and transportation industry? 10
- (b) Explain properties of cryogenic fluids. 10 Module - II
- (a) With neat sketch and T-s diagram explain the working of a magnetic refrigeration system. 10
- (b) Explain stirling cycle cryo coolers. 10 OR
- Explain claude system of Liquefaction with T-S diagram. Derive the expressions for liquid yield and work requirement. 20
- (a) Explain about the working of a precooled Linde-Hampson system with suitable diagram for neon and hydrogen.
- (b) Derive an expression for COP of Carnot refrigerator and show the cycle on $\mathrm{p}-\mathrm{V}$ and $\mathrm{T}-\mathrm{s}$ coordinates. OR
- (a) What is cryogenic refrigeration? Explain the working of Vuilleumier refrigerator.10(b) Explain the critical components of liquefaction systems. $\mathbf{1 0}$MODULE - IV
- (a) Briefly discuss various temperature measurement techniques used in cryogenic applications. ..... 10
- (b) Explain the cryogenic fluid storage vessels with neat sketch. ..... 10 OR
- (a) Write short notes on the various heat exchanger configurations used in cryogenic systems. ..... 10
- (b) Explain about cryogenic fluid transfer systems. ..... 10